Oil seems to be the most popular quencher in modern times, but if I think too much about flash point and stuff it begins to feel more like cooking than blacksmithing, but oh, well, if it works then it works!
If you’re making a sword, do you go full-on historical about it? What do you use then?
hi coblynau, give me some idea of what material you are using and I will try to give you a few pointers on what to do with it, an SAE number would be helpful or a worksoff